20mm single dynamic block, multi function

The 20mm Single Multi Function Block is a versatile foundation block used across a wide range of configurations within the 20mm range. Featuring a modified head design compared to the standard A2020, it is engineered to accept a variety of attachments and serves as the base for multiple single, double, and triple block assemblies.

Key Features

• Multi-function head designed to accept swivel, fork, and cheek adaptors
• Base block used in the A2021F, A2021HK, A2021SC, and all double and triple variations
• Engineered for integration with double and triple Ultra-Strap assemblies
• Compact, lightweight, and durable construction
• Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and longevity
• Integrated Becket with a large central rivet, providing a lightweight and rope-friendly attachment point for cascade systems
• Ideal for applications requiring flexibility, modularity, and smooth, low-friction performance